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Walkable demo
Demolition and Site Clearance
Walk a hoarded demolition site: a part demolished building worked by a high reach excavator, a dozer shifting muck, a crusher and screening plant making hardcore, salvage stacks, skips and a full site compound.
About
What is placed
A hoarded plot about 44 by 25 metres, laid on its own demolition, mud tracked and crushed hardcore ground tiles, with a debris netted scaffold run along the far side. The building is down to three wall sections, intact, breached and reduced to rubble, with floor slab sections cut back to show their rebar and rubble piles in three sizes spread across the cleared floor. A high reach demolition excavator works the face with a tracked breaker excavator beside it, a tracked bulldozer windrows the muck, a skid steer with a sorting grapple picks the arisings over and a telehandler, a site dumper and an articulated dump truck run the haul route. The west end is the processing train: a tracked jaw crusher, a tracked screening plant, a wheeled loader and a graded crusher feed pile. Salvage is sorted into brick stacks on pallets, a bundled steel beam, cut rebar and a timber waste pile, with an open top skip, a covered skip and a lifting magnet on its stand. The compound inside the hoarding gate holds the office cabin, welfare unit and site cabin, a wheel wash frame, a dust suppression sprinkler bar and bowser, floodlight masts, a power distribution board, a fire point, a first aid station, signage, a banksman post, cones, mesh fencing and steel road plates.
What moves
The hoarding gate panel swings open and closed. The bulldozer raises and angles its blade on separate clips. The breaker excavator and the high reach both work their booms, and the digging excavator swings its boom and curls its bucket. The wheeled loader, the skid steer and the telehandler raise their booms and tip their buckets, grapple and telescopic reach, and roll their wheels. The site dumper and the articulated dump truck tip their skips and roll. The dust suppression bowser spins and rolls. The covered skip lifts its lid, the three cabins open their doors and the power distribution board opens its cover.
What does not move, and why
Track belts are static geometry: a belt running round its rollers is not reachable with the rigid node transforms this library uses, so the dozer and excavator tracks stay put even though their blades and booms do not. Hydraulic rams beyond the one driven node, dust, chains and netting are static for the same reason. There are no operators or crew anywhere on the site, because nothing here is skinned. This is a controlled demolition site rather than a disaster scene: the hoarding is tidy, dust suppression is running and the salvage is sorted. No real plant manufacturer or contractor is named on any machine or sign.
Every piece here is a published model from the pack, placed by hand. Walk with the keys or touch, and approach a piece to see it move if it has animation. Colliders, navigation and gameplay are yours to add.
Points of interest
Dozer on the muck shift
The tracked bulldozer windrows broken material across the cleared floor. Its blade raises and angles on separate clips, so you can watch it lift and tilt as you come up on it.
Tracked bulldozer with raising and angling blade (Demolition and Site Clearance)High reach at the face
The high reach excavator stands thirteen metres to the boom tip, nibbling the top of the building down to the ground rather than dropping it. The tracked breaker works the slab beside it.
High reach demolition excavator (Demolition and Site Clearance)One wall, three states
The same wall section ships intact, breached and down to rubble, so a face can be taken apart in stages. The floor slab in front of it is cut back to show its rebar.
Demolition wall section, breached (Demolition and Site Clearance)Crushing and screening
The tracked jaw crusher and the screening plant turn the rubble into graded hardcore. The wheeled loader feeds the hopper from the pile and drops its bucket at the stockpile toe.
Tracked jaw crusher (Demolition and Site Clearance)Sorted, not tipped
Brick on pallets, a bundled steel beam, cut rebar and clean timber are stacked for reuse, with an open skip and a covered skip beside them for what cannot be salvaged.
Open top waste skip, 12 yard (Demolition and Site Clearance)Gate, wheel wash and compound
Everything enters past the hoarding gate, the banksman post and the wheel wash. Office, welfare and site cabins line the hoarding, with the sprinkler bar and bowser keeping the dust down.
Wheel wash frame (Demolition and Site Clearance)
Use with an AI agent
Copy this prompt into your AI chat to rebuild the layout, then describe what to change.
Rebuild the "Demolition and Site Clearance" demo scene from the Demolition and Site Clearance pack in my project. Layout (JSON, every placement with its CDN URL): https://3dassets.dev/api/v1/demos/demolition-and-site-clearance Pack manifest: https://3dassets.dev/api/v1/packs/demolition-and-site-clearance Demo page: https://3dassets.dev/demos/demolition-and-site-clearance - 138 placements of 48 models; units are metres, +Y up, rotation is yaw in degrees about +Y - Spawn at (3.5, 0.08, -0.75) facing 138 degrees; eye height 1.6 m - Licence: CC0 1.0 Universal (no attribution required) - Loading: three.js GLTFLoader, one load per distinct model, cloned per placement; no decoders required
Also available as JSON or Markdown, and via the MCP server.
Common questions
How do I use Demolition and Site Clearance with my AI development tools?
How do I get started?
Which game engines and tools can I use Demolition and Site Clearance with?
How do I import this scene into Unity, Godot, Unreal or Blender?
Can I use Demolition and Site Clearance in a commercial game, and do I need to credit anyone?
Can I load it from the CDN instead of downloading it?
Is the demo itself a file I can download?
Can I change the scene, or add gameplay to it?
Models in this demo
Demolition site ground tile, 4 m (Demolition and Site Clearance)
Heavy duty concrete site module 4 m square and 120 mm thick with saw cut joints running each way, laid so its top face is the running surface, with edge ports on all four sides so a whole clearance site repeats from it.
Crushed hardcore haul road tile, 4 m (Demolition and Site Clearance)
The same 4 m site module surfaced with crushed hardcore from the site's own crusher: a 90 mm bed of graded material with loose lumps scattered across it and a rolled crown down the middle, for the haul road and the crusher apron.
Mud tracked site ground tile, 4 m (Demolition and Site Clearance)
The same 4 m site module with dried mud trodden across it by the plant: three spread patches standing a few millimetres proud of the slab with two wheel ruts run through them, for the working face and the haul line.
Site hoarding panel, 4 m (Demolition and Site Clearance)
Solid site hoarding bay 4 m wide and 2.5 m tall: blue faced plywood sheeting on a timber frame between two charcoal posts on precast feet, with a capping rail, a blank cream notice board and a yellow warning plate, and side ports so a perimeter repeats.
Site hoarding gate panel, 4 m (Demolition and Site Clearance)
The same hoarding line as the site entrance: a 3.4 m sheeted leaf hung on a heavier post with a drop bolt and a latch keep, a red keep clear plate on the closing post, and the leaf swinging clear into the site.
Mesh site fence panel, 3.5 m (Demolition and Site Clearance)
Temporary mesh fence panel 3.5 m wide and 2 m tall in a tubular frame: welded mesh infill, a blue site information plate wired to the rail, and side ports at 1 m so a run of panels closes a compound.
Mesh fence foot block (Demolition and Site Clearance)
Moulded concrete fence foot 0.6 m long with two slotted sockets and a moulded handle recess, the block a temporary mesh panel stands in, modelled loose so a run of them can be dropped along a line.
Debris netting scaffold bay, 4 m (Demolition and Site Clearance)
Scaffold screen bay 4 m wide and 4 m tall: a tube and fitting frame of standards, ledgers and a plan brace carrying a blue debris netting panel laced to its edges, with side ports at 2 m so a screen runs along a demolition face.
Demolition wall section, intact (Demolition and Site Clearance)
Intact masonry wall section 4 m wide, 3.2 m tall and 320 mm thick: brickwork with proud courses, a concrete lintel over a blocked opening, a cream plaster patch on the inner face and a stub of floor beam left in the pocket, with side ports at 1.4 m so a facade runs on.
Demolition wall section, breached (Demolition and Site Clearance)
The same wall section taken back by the machine: a full height pier at one end, a ragged stepped edge of brick teeth, a breach right through the middle at ground level and a broken lintel hanging over it, with bent rebar tails showing in the concrete.
Demolition wall section, down to rubble (Demolition and Site Clearance)
The same 4 m bay after the wall is down: a 500 mm stub of brickwork on the footing with the broken face showing, a heap of graded masonry rubble across the bay and two lengths of bent rebar lying in it, ready for the loader.
Floor slab section with rebar showing, 4 m (Demolition and Site Clearance)
Broken reinforced floor slab 4 m square and 220 mm thick: a saw cut edge on two sides, a ragged broken edge on the others with the reinforcement mesh bent up out of it, a screed patch lifted clear and ground ports on all four sides.
Rubble pile, small (Demolition and Site Clearance)
The same arisings at 2 m across and 0.7 m high, the size that gathers at the foot of a wall between passes: broken concrete, brick and steel with a loose scattered surface.
High reach demolition excavator (Demolition and Site Clearance)
High reach demolition machine 14 m tall on a widened tracked base: a yellow house with a tilting guarded cab and screens, a three piece boom standing up to the top of a building and a pulveriser jaw head parented to it, the machine that takes a structure down floor by floor.
Tracked excavator with hydraulic breaker (Demolition and Site Clearance)
The same excavator with the bucket swapped for a hydraulic breaker: a charcoal hammer box on the quick coupler with a moil point chisel and hose stubs, hung off the boom as a parented node so it travels with the raise, the tool a controlled demolition works a slab with.
Tracked bulldozer with raising and angling blade (Demolition and Site Clearance)
Twenty tonne tracked bulldozer 6.2 m long: an orange body with a glazed cab and a ribbed engine hood, a straight moldboard 3.8 m wide on push arms that raise, a moldboard that angles on its centre ball, a three shank ripper at the back and modelled crawler tracks.
Rubble pile, large (Demolition and Site Clearance)
The same arisings at 6 m across and 2.2 m high, the stockpile a site pushes up before the crusher takes it: broken concrete, brick and steel settled into a long heap with a loose scattered surface.
Tracked excavator with digging bucket (Demolition and Site Clearance)
Twenty two tonne tracked excavator 9 m long: a yellow house with a glazed cab, a counterweight and a ribbed engine deck on a slew ring, a boom and dipper that raise on the foot pin and a toothed digging bucket parented to them, so the two travel together.
Rubble pile, medium (Demolition and Site Clearance)
Heap of demolition arisings 3.4 m across and 1.2 m high: broken concrete, brick and a little steel settled into the shape a dozer blade leaves, with a scattered surface of loose lumps, for the middle of a clearance.
Skid steer loader with sorting grapple (Demolition and Site Clearance)
Compact skid steer 3.4 m long on four solid tyres: an orange body with a guarded glazed cab, side lift arms that raise and a sorting grapple on the coupler whose top jaw opens, the machine that picks salvage out of a pile.
Telehandler with telescopic boom (Demolition and Site Clearance)
Rough terrain telehandler 5.6 m long: a yellow body with a side engine pod and a glazed cab, four wheels that roll, a telescopic boom that raises on its rear pivot and an extension section that reaches out with the fork carriage on the end.
Lifting magnet attachment on its stand (Demolition and Site Clearance)
Excavator lifting magnet 1.6 m across on a site stand: a charcoal magnet disc with a steel wear plate and a lifting bail, the generator lead coiled on its hook, and a yellow tubular stand with a warning plate, the attachment that picks rebar and scrap out of the arisings.
Dust suppression sprinkler bar (Demolition and Site Clearance)
Damping down bar 6 m wide on two ballasted feet: a galvanised spray boom on uprights with eight nozzle stubs and a lay flat feed hose to a stop tap, the standing kit that keeps the dust off a demolition face.
Tracked jaw crusher (Demolition and Site Clearance)
Tracked mobile jaw crusher 12 m long: a grey chassis on wide crawler tracks, a yellow feed hopper with folding walls and a vibrating grizzly feeder, the jaw box and its flywheel guard, a power unit, and a product conveyor with an overband magnet over its head drum.
Tracked screening plant (Demolition and Site Clearance)
Tracked screening plant 13 m long: a grey chassis on crawler tracks, a yellow feed hopper, a double deck inclined screen box under its mesh, a power unit, and three product conveyors throwing fines, sand and oversize into their own cones beside the crusher.
Wheeled loader with tipping bucket (Demolition and Site Clearance)
Articulated wheeled loader 7.4 m long: a yellow rear body with the engine hood, counterweight and exhaust, a glazed cab on the articulation joint, four wheels that roll, a boom that raises and a toothed rehandling bucket that tips, the machine that feeds the crusher.
Graded crusher feed pile (Demolition and Site Clearance)
Feed stock sorted for the crusher: a 4 m heap of picked concrete with the reinforcement cut out, a lower apron of crushed product beside it and the bucket tracks pushed into the toe, the way a feed pile is kept clean.
Articulated dump truck (Demolition and Site Clearance)
Six wheel articulated hauler 10.5 m long: an orange tractor unit with a glazed cab, an exhaust stack and a hitch, a charcoal chassis carrying a steel body with a ribbed floor and a canopy, six wheels that roll and a body that tips on its rear pivot.
Site dumper with tipping skip (Demolition and Site Clearance)
Front tip site dumper 3.6 m long on four chunky tyres: an orange chassis with a charcoal engine bay, a roll bar over the operator seat with a steering wheel and control lever, and a steel skip that tips forward on its front pivot to shed rubble.
Salvaged brick stack on pallets (Demolition and Site Clearance)
Reclaimed brick banded onto two timber pallets 2.4 m long: cleaned bricks stacked in header and stretcher courses under a steel banding strap, with a cream tally plate wired to the stack, the way salvage is set aside on a clearance.
Timber waste pile (Demolition and Site Clearance)
Sorted timber waste 3 m across: joists, floorboards and stud offcuts stacked criss cross with the nails drawn, a broken door leaf leaning on the stack and a cream waste stream plate on a stake, the segregated pile a clearance keeps for the timber skip.
Salvaged steel beam bundle (Demolition and Site Clearance)
Six cut universal beams 6 m long stacked on timber bearers: flanged sections with torch cut ends, web holes where the connections were, a steel banding strap and a painted end mark, sorted out of the demolition for the scrap merchant.
Cut rebar bundle (Demolition and Site Clearance)
Bundle of reinforcement cut out of the slab: forty bars 4 m long wired into two banded bunches on a timber bearer, ends sheared square, with two bent tails sticking out of the bundle and a red end cap tray beside it.
Open top waste skip, 12 yard (Demolition and Site Clearance)
Open top site skip 4.2 m long, 1.9 m wide and 1.3 m deep: an orange body with a sloped hook end, charcoal rubbing rails and lifting lugs, a yellow top rail all round, a steel hook bar and a blank waste stream plate, standing on its runners.
Covered waste skip with lifting lid (Demolition and Site Clearance)
The same 12 yard skip under a sheeted lid: a framed steel cover hinged along the back rail that lifts, the way a dusty load is kept damped down and covered on a demolition, with the same body, rails and hook bar underneath.
Steel road plate (Demolition and Site Clearance)
Steel road plate 3 m by 2 m and 25 mm thick: a chequered top face with four lifting eyes at the corners, chamfered edges bedded on a thin asphalt fillet and a yellow edge mark, the plate that bridges a broken slab or a service trench.
Wheel wash frame (Demolition and Site Clearance)
Drive through wheel wash 5 m long at the site exit: a steel ramped trough with a grated bed and a settlement sump, side spray bars on uprights with nozzle stubs, a gantry with a blue instruction plate and a control box on a post.
Banksman post with stop sign (Demolition and Site Clearance)
Banksman's stand at the site exit: a ballasted post 2.2 m tall with a red octagonal stop plate and a blue instruction plate, a hi vis coat and helmet hung on the hook, and a charcoal radio charger box, all blank of wording.
Site signage set on a frame (Demolition and Site Clearance)
Entrance signage frame 2.6 m tall on two ballasted feet: a blue site rules board with modelled rule bars, a yellow warning triangle, a red prohibition disc and a green information plate, every face blank of wording and every symbol modelled rather than printed.
Traffic cone and barrier set (Demolition and Site Clearance)
Site traffic kit: a 2 m plastic barrier in orange with charcoal end couplers and a ballast fill neck, three 0.75 m road cones with reflective bands and a hi vis bollard on a base, the kit a banksman closes a route with.
Towable dust suppression bowser (Demolition and Site Clearance)
Site water bowser 3 m long on a two wheel chassis: a blue tank with steel bands, a filler hatch and a walkway, a pump set in a charcoal cabinet, a damping down hose on a reel that turns, a spray lance in its holster and red warning plates.
Site office cabin (Demolition and Site Clearance)
The same cabin as the site office: a cream clad body with a red banded door, four windows down the front, a step up to the door and a site notice board on the end wall, the cabin the job is run from.
Site welfare unit (Demolition and Site Clearance)
The same cabin as the welfare unit: a blue clad body with a yellow banded door, two windows and a mess room end, on stacked blocks with a water butt and a waste drum plumbed at the back, where the crew takes its breaks.
Site cabin on blocks (Demolition and Site Clearance)
Portable site cabin 6 m by 2.4 m standing on stacked concrete blocks: a cream clad body on steel skids with a charcoal base rail, three sliding windows, a blue banded door up two steps, lifting eyes at the corners and a blank notice plate.
Site fire point (Demolition and Site Clearance)
Free standing fire point 1.5 m tall: a red backboard on a charcoal stand with a steel drip tray, two extinguishers with charcoal horns, a blank call point plate and a yellow instruction notice, the point a hot works permit requires.
Site first aid station (Demolition and Site Clearance)
The same stand kitted as the first aid point: a green backboard with a cream cross modelled proud of it, a cased kit and an eyewash bottle pair on the tray, and a blue notice plate, the station a site keeps beside the welfare unit.
Temporary power distribution board (Demolition and Site Clearance)
Site power distro 1.6 m tall on a charcoal stand: a yellow enclosure with a hinged door that swings, banks of blue and yellow socket outlets, an isolator handle, a supply gland at the foot and a cable hook on the side.
Site floodlight mast (Demolition and Site Clearance)
Galvanised floodlight mast 6 m tall on a ballasted base: a tapered column with a charcoal head frame carrying four canted flood lamps with glass lenses, a hooded junction box at working height and a yellow impact collar at the foot.